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CVE-2026-23422 In the Linux kernel, the following vulnerability has been resolved: dpaa2-switch: Fix interrupt storm after receiving…

Description

In the Linux kernel, the following vulnerability has been resolved: dpaa2-switch: Fix interrupt storm after receiving bad if_id in IRQ handler Commit 31a7a0bbeb00 ("dpaa2-switch: add bounds check for if_id in IRQ handler") introduces a range check for if_id to avoid an out-of-bounds access. If an out-of-bounds if_id is detected, the interrupt status is not cleared. This may result in an interrupt storm. Clear the interrupt status after detecting an out-of-bounds if_id to avoid the problem. Found by an experimental AI code review agent at Google.

Affected products and versions

Product Affected versions Fixed in
Linux 7.0 earliest → < 7.0 7.0
Linux 6.19 6.19.7
Linux 6.18 earliest → < 6.18.17 6.18.17
Linux 6.12 earliest → < 6.12.77 6.12.77
Linux 6.6 earliest → < 6.6.130 6.6.130
Linux 6.1 earliest → < 6.1.167 6.1.167
Linux 5.15 earliest → < 5.15.203 5.15.203
SIMATIC S7-1500 CPU 1518-4 PN/DP MFP 3.1 3.1.7 → latest No fix stated
SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP 3.1 3.1.7 → latest No fix stated
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Product Affected versions Fixed in
SIPLUS S7-1500 CPU 1518-4 PN/DP MFP 3.1 3.1.7 → latest No fix stated

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